[4X Faster 41W Charger] Equipped with double-sided blind plug-in 1 QC 3.0 port (18W), 1 Type C PD 3.0 port (18W) and 1 USB port (5W), ByDiffer Bluetooth FM transmitter is provided for drivers and passengers 4 times faster charging speed. $ [4 modes and 2 screens] ByDiffer car Bluetooth adapter supports Bluetooth/U disk/Micro SD (TF) card/AUX input play mode. One screen displays the FM frequency, and the other screen displays the car voltage of cars (12V) and trucks (24V). $ Aux OutYou can connect the ByDiffer FM transmitter to the car through the provided Aux Cable. In this way, you can get excellent sound quality without any static electricity. If your car does not have an aux interface and you need to use the car radio to connect, please select an empty radio station. It is recommended that the frequency of the empty station is far from that of the local station. $ [Hands-free call and voice assistant] One-key answer/reject/hang up/redial call. The noise reduction microphone adopts DSP technology, and the noise reduction is as high as 90%. Just enjoy a clearer and clearer call. In addition, you can use Siri or Google Assistant to make calls, send text messages, or get driving directions to focus completely on the road. $ [Rotation and memory function] Horizontal 90 and vertical 45 adjustable, made of a longer lower part insertion part, ByDiffer Bluetooth FM transmitter is easier to use hands-free call and charger port. Time memory: In the U disk/TF card playback mode, start the car again, and the same song that was played last time will be played.